| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] at what [noun] | 65 |
|
| 2 | [conj] at what [noun sg] | 57 |
|
| 3 | [conj] [prep] what time | 11 |
|
| 4 | [conj] [prep] what time | 11 |
|
| 5 | [conj] at [pron] time | 8 |
|
| 6 | [conj] at what time | 7 |
|
| 7 | [conj] at what time | 7 |
|
